The data files in this repository are:

    
    ***  double layer (H2O:CH4:NH3)+(CO:CH3OH) (2:1:1)+(3:1) without isotopes    ***

IR_noIsotop.dat - IR spectra of the ice sample and those after each irradiation step

QMS_noIsotop.dat - Mass spectra for m/z=28,29,30,31,44 

 
 **  double layer (H2O:13CH4:15NH3)+(CO:CH3OH) (2:1:1)+(3:1)  with isotopes ***

IR_Isotop.dat - IR spectra of the ice sample 

QMS_Isotop.dat - Mass spectra for m/z=31